Progressive die for manufacturing lock washers



. Nov. 24, 1931. w H, TICE 1,833,190

PROGRESSIVE DIE FOR MANUFACTURING LOCK WASHERS Filed Oct. 1. 1929 3 Sheets-Sheet l "Ill gmmtoz Nov. 24, 1931.

Filed Oct. 1. 1929 I W. H. TICE PROGRESSIVE DIE FOR MANUFACTURING LOCK WASHERS Fig: L'l

3 Sheets-She et 2 W/W/bm Maw 7766 swam too auomq f'he punpho-len u e within the body pfirtion of the lock washe neousl'y removed from thesheet stock asillus er ism be made is then progressed the width rlof "one washer and the slits -3 -andi'4 are formed in, the next prognession. The lockilig ie s ian are their e med etqfis t to theiplane cf thebody element in the next uniformly therewith to a; unifomiitaper and 'in theifinak progression. 1015 the sheet stock I the lock washer is cut from the sheet stock. 7

The progression of the" sheet steck v v it hin' the die is illustrated ihljigs -lQ and ll and. in Fig. ,11 the punch for forming the'central I hQ -i is il ustrat d a eml't vP 91 for cutting out the from side oi theflwesheii and thet angelarnq ch sillustmted aft-13. The. punch for removing the finished Washer in trefted at in-QEigS. j 19 respectively i for formingthecentxfalhole isli m n w thin. 1 punch hold r in" F g 3115' the punch 1 3 ior V clutting outlthe front PQ i Qn t w she and fi rvform ng; h w 7 j an ul otch 9 he-b dy pe on lso S Ri- $131 9 1 0M0 wPmwh 7; is} e Stowe .wit h iit has adage .9

of the k a h r in ip' eci fl-ifll g m nt and hi k se;:lm be n st Pme s i Qf .7

wh h he r k' afsh n-b n n 2m-= e hQdmm iQ ;amiiiml n sz eqiw et. ens-legen bea e the s en s ifihout I '2 heenese h i-h dy; pert n, o Jth vbody I nf r of the lock washen. --'In the last plgogr essien he tock hepuneh-lfk uts wa h f e the steel; a fini hes p od ct-f;

' orde o h .iew 0 t Q 1,833,190 I V j i? progression and the locking 1' aWs are swedg ed I the blank being-punched, a, locator point. and

2:0 the l al progression operation is. illustrated get '14.: .{lhe bese} oi the die holdeli is best s ew- 1 l and th punch h lde s illusr 7 t 1 e etezs sl-p a edmi hingthe dfeholden g the inner edge' i of the same is'slightlfy ftg' Y I V What I claim is:

In a device of thei'class described, the combination of a, punchl and dieholder adapted for, Companion use in'a-punchpress', a bolt hole punch and ewshearing punch having eptriangular projection; outwardly .LeXtending 7 therefrom; carried by the punch holder arranged to function as the initial operation 'end 'a d apted to 'form a V-shaped notch in t a; swaging' plate arranged in s a iremion wit hthe initial punchesend adapted to make a tongueforming' slit stench side of the Vishapecl notch, a shearing and forming; punchhi rangetfin' spaced relation with the loc ator point and edepted to. bend eachg of th i g 'l e tllqi th and the oppositely disposed sales. of thebodyei the. blank bel ngfpu eh d, a; h aiz ngpuneh ioij the remqyel ofthe. fihisheglfproduet' ai' ranged inspa'cedireletion with the. sheagingand fdr ilgpunch: and receiving eyeinge disposed within the (lie: hold r d; inf figis: f blea gnme t-Witht efpunehi-n ;,,$h 5

K dis q ef es. n eli o lt" but puneh-hld r lbckrwaisher mtermithesamesl ghtlwtae in 'OIOSS'JSQCfiiQiIaL' area i detjt thinnerlon their innen ed gesa than on thezoutei tightened uponfthe bolt inwhi'ch the lock washer'is bing used, may not engag the iemzthe; locking jaws-of thei'washen stightly edgeofithe j 'a-w in o1 d1erthat the m t; when he liiaiisi esi ribed is dmir hly a ap ediq time? A L. 1 x f 1:10."

-i. l-g ng p unch zml vin t h v V n j j 'jaw, forming faces 21 and 22, slitsthe jaws rim 7 

